<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="text" placeholder="请输入1-100之间的整数">
<input type="button" value="猜一猜" onclick="f()" >
<h2>结果：<span></span></h2>
<script>
    let x=parseInt(Math.random()*100)+1;
    let i=document.querySelector("input")
    let s=document.querySelector("span")
    let c=0;
    function f(){
        c++;
        if(i.value>x){
            s.innerText="猜大了！"
        }else if(i.value<x){
            s.innerText="猜小了！"
        }else {
            s.innerText="恭喜你第"+c+"猜对了！"

        }

    }

</script>
</body>
</html>